Hi Omar,
There is some sort of error in your structure definition, but the following
works for me:
session.duration.fuente <-
data.frame(mes=c(rep("oct",5),rep("nov",5)),
fuente=c("adwords", "directo", "organico", "redes sociales",
"referral", "adwords", "directo", "organico", "redes sociales",
"referral"),
avg.session.duration = c(970178, 1642455, 780485,
3170400, 179184, 352995, 833827, 260610, 2318928, 49836))
base_dates<-strptime(rep("1970-01-01",10),"%Y-%m-%d")
format(base_dates+session.duration.fuente$avg.session.duration,"%H:%M:%S")
[1] "05:29:38" "00:14:15" "00:48:05" "16:40:00" "01:46:24" "02:03:15"
[7] "15:37:07" "00:23:30" "20:08:48" "13:50:36"
Jim
On Thu, Nov 12, 2015 at 10:15 AM, Omar André Gonzáles Díaz <
oma.gonza...@gmail.com> wrote:
> Hi,
>
> I've a data frame with 3 columns: "mes", "fuente", "avg.sessions.duration".
>
> "avg.sessions.duration" is a column containing seconds.
>
> I need you help with:
>
> 1.- Help to put these values in "h:m:s" format.
> .
>
> =======================================================
>
> I've found this german page:
>
> http://forum.r-statistik.de/viewtopic.php?f=25&t=5284
>
> So I've tried:
>
> for (i in 1:nrow(session.duration.fuente)) {
>
> session.duration.fuente$avg.session.duration <-
> format(as.POSIXct('0001-01-01 00:00:00') +
> session.duration.fuente$avg.session.duration[i], "%H:%M:%S")
>
> }
>
> but got this error:
>
> Error in unclass(e1) + unclass(e2) :
> non-numeric argument to binary operator
>
> =======================================================
>
> After that I've tried: strptime:
>
> session.duration.fuente$avg.session.duration <-
> strptime(session.duration.fuente$avg.session.duration, "%H:%M:%OS")
>
> But got NAs.
>
> ========================================================
>
> Here is the data:
>
>
> session.duration.fuente <- structure(list(mes = structure(c(1L, 1L, 1L, 1L,
> 1L, 2L, 2L,
> 2L, 2L, 2L), .Label = c("oct", "nov"), class = c("ordered", "factor"
> )), fuente = c("adwords", "directo", "organico", "redes sociales",
> "referral", "adwords", "directo", "organico", "redes sociales",
> "referral"), avg.session.duration = c(970178, 1642455, 780485,
> 3170400, 179184, 352995, 833827, 260610, 2318928, 49836)), row.names =
> c(NA,
> -10L), class = c("grouped_df", "tbl_df", "tbl", "data.frame"), vars = list(
> mes), drop = TRUE, .Names = c("mes", "fuente", "avg.session.duration"
> ))
>
> [[alternative HTML version deleted]]
>
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> and provide commented, minimal, self-contained, reproducible code.
>
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